/*
 * Project: Sudoku Hint Engine for Android
 * Copyright (C) 2010-2013 Emanuel Moecklin
 * 
 * Available under the terms of the Lesser General Public License (LGPL)
 */
package com.onegravity.sudoku.solver.rules.als;

import java.util.BitSet;
import java.util.Map;

import android.net.Uri;

import com.onegravity.sudoku.solver.HintType;
import com.onegravity.sudoku.solver.core.IndirectHint;
import com.onegravity.sudoku.solver.core.Rule;
import com.onegravity.sudoku.solver.data.Cell;

/**
 * ALS-XY-Chain
 * Unused at the moment
 * @author Emanuel Moecklin
 */
public class ALSXYChainHint extends IndirectHint implements Rule {

	private static final long serialVersionUID = 4142765195617339794L;

	protected ALSXYChainHint(Map<Cell, BitSet> removablePotentials) {
		super(removablePotentials);
	}

	@Override
	public String getName() {
		return null;
	}

	@Override
	public double getDifficulty() {
		return 0;
	}

	@Override
	public String toString() {
		return null;
	}

	@Override
	public String getHintHtml(HintType hintType) {
		return null;
	}

	@Override
	public Uri getLink() {
		return null;
	}

}